Sebastian, Evenlyn L., English proficiency 1 Evelyn L. Sebastian - 2nd Edition. - Quezon City : C & E Publishing. 2013. - 190 pages : tables ; 26 cm. ISBN: 9789719800569 Subjects--Topical Terms: English language--Study and teaching.English language--Textbooks. Dewey Class. No.: 428.007 / Se21e